Atty. William DeVinney
William DeVinney has a broad litigation practice that includes antitrust, intellectual property, employment, securities and other complex commercial litigation. He has extensive trial experience, both as a member of trial teams and as first chair in jury and bench trials, arbitrations proceedings, and regulatory hearings, and has argued cases before several federal and state appellate courts.
Business Litigation & More Attorney · Serving Tysons, VA · 28+ Years Experience
Profile Summary
About William DeVinney at a Glance
William DeVinney is an Of Counsel based in Tysons, Virginia, practicing at BrigliaHundley, P.C.. They have 28+ years of legal experience, licensed to practice since 1998. Their practice focuses on criminal defense, business, and litigation. Admitted to practice in Virginia New York District of Columbia (1998). Educated at Cornell University William & Mary School of Law (—). Serves clients in Tysons, VA and the surrounding metropolitan area.
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About William DeVinney
- William DeVinney has a broad litigation practice that includes antitrust, intellectual property, employment, securities and other complex commercial litigation
- He has extensive trial experience, both as a member of trial teams and as first chair in jury and bench trials, arbitrations proceedings, and regulatory hearings, and has argued cases before several federal and state appellate courts
- Mr. DeVinney also counsels clients about complying with antitrust, privacy, and employment laws, as well as regulatory risks arising from mergers, distributions, licensing, franchise, sales, and other agreements
- ExperienceMember of a team representing a certified class of dairy farmers located in 14 southeastern states against Dairy Farmers of America, Dean Foods and a number of other defendants in an action alleging violations of sections 1 and 2 of the Sherman Act by unlawfully conspiring to eliminate competition for the marketing, sale and purchase of raw milk in the Southeast
- The plaintiffs recovered $350,000,000 in damages.Represented a multinational consumer goods company in a consumer class action alleging false advertising
- The complaint against the client was dismissed with prejudice.Represented a multinational chemical and agricultural biotechnology corporation against a Sherman Act Section 2 claim brought by a competitor alleging that the client had either monopolized or attempted to monopolize the alleged market for transgenic corn seed.Defended a multinational chemical and agricultural biotechnology company accused of monopolizing the market for the transgenic corn seed industry
- A motion for class certification by the plaintiff was rejected by the trial court and before the Third Circuit on appeal.Represented a multinational technology company in a private antitrust claim brought by a competitor, as well as in investigations brought by the European Union, the Federal Trade Commission and state government enforcement agencies.Defended a former executive of Bankers Trust Corp. in a criminal trial and related Securities and Exchange Commission (SEC) administrative proceedings arising from the alleged improper accounting treatment of unclaimed funds
- After a six-week jury trial, the client was acquitted of all 36 counts in the indictment and a favorable settlement was reached with the SEC
Practice Areas Explained
William DeVinney's Areas of Legal Practice
Each practice area below reflects the types of cases William DeVinney handles, with a practical overview of what that area of law involves and how it may apply to your situation in Tysons.
Criminal Defense in Tysons
A criminal defense attorney protects your rights from arrest through trial. Find experienced lawyers handling DUI, drug, federal, theft, and violent-crime charges.
William DeVinney is one of 212,605 criminal defense attorneys indexed nationally. Browse criminal defense attorneys in Virginia →
Business & Corporate Law in Tysons
Business attorneys advise founders and growing companies on entity formation, contracts, financing, M&A, and dispute resolution.
William DeVinney is one of 497,491 business attorneys indexed nationally. Browse business attorneys in Virginia →
Civil Litigation in Tysons
Civil litigation attorneys for breach of contract, business disputes, civil rights, and class action lawsuits.
William DeVinney is one of 450,751 litigation attorneys indexed nationally. Browse litigation attorneys in Virginia →
Jurisdictional Context
Why Local Counsel Matters in Tysons
Practicing law in Virginia. Legal matters in Virginia are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantive law. Cases originating in Tysons are typically filed in the local municipal court or the appropriate Virginia state district court, depending on subject matter and amount in controversy. An attorney licensed in Virginia brings working knowledge of local procedural deadlines, judicial practices in this venue, and the substantive law that applies to cases brought here. Out-of-state attorneys generally cannot represent clients in Virginia courts without local counsel or pro hac vice admission.
Tysons Courts and Legal Process
Choosing a Tysons-based attorney means your counsel already knows the local docketing timelines, preferred filing formats, and how individual judges typically rule on procedural motions — details that only come from practicing in this jurisdiction day after day. That local familiarity can translate to better strategy, faster filings, and fewer costly surprises.
Looking for additional Virginia attorneys? Browse all attorneys in Tysons or all attorneys in Virginia.
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Professional Profile
Why Clients in Tysons Choose William DeVinney
Selecting an attorney is one of the most consequential decisions you can make when a legal matter arises. Below are the core qualities that distinguish William DeVinney's practice in the field of criminal defense, business, and litigation.
Decade-Tested Legal Experience
William DeVinney brings 28+ years of hands-on legal practice — enough to have navigated the recurring fact patterns, procedural traps, and negotiation dynamics that shape case outcomes.
Broad Practice Area Coverage
Covering criminal defense, business, and litigation, William DeVinney can address the full spectrum of a client's legal needs without requiring referrals to separate specialists for each issue.
Local Presence in Tysons
A Tysons-based practice means William DeVinney attends hearings in the same courthouses, knows the local clerks, and understands the unwritten scheduling norms that affect every case filed here.
Case Types
Common Legal Issues William DeVinney Handles in Tysons
Below is a representative sample of the types of matters William DeVinney has experience with under Virginia law. If your situation involves one of these case categories, this attorney may be well positioned to help you understand your options.
This list is illustrative, not exhaustive. Contact William DeVinney directly to discuss the specifics of your situation.
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How People Find William DeVinney Online
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William DeVinney's Practice Areas & Specializations
Education & Law School Background
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